Grouting method used for vibration isolating and denoising outside subway tunnel segments

A tunnel segment and vibration isolation technology, applied in tunnels, tunnel linings, underground chambers, etc., to achieve the effects of easy portability, light weight and reasonable design

Active Publication Date: 2014-07-09
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, the present invention aims to provide a grouting method for vibration isolation and noise reduction of tunnels in subway intervals, which is an active vibration

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  • Grouting method used for vibration isolating and denoising outside subway tunnel segments

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Embodiment Construction

[0025] In order to make the above objectives, features, and advantages of the present invention easier to understand, the following describes the embodiments of the present invention in further detail in conjunction with specific implementations.

[0026] Hole arrangement parameters: Toward the tunneling direction, grouting is performed once every 3-5 shield segments. The hole arrangement parameters can be adjusted according to requirements.

[0027] (1) Buried grouting pipes at the selected grouting holes;

[0028] (2) Determine the ratio of the vibration isolation and noise reduction material resin to the catalyst, that is, simultaneously satisfy the volume ratio of 1:1 and the weight ratio of 1:1.17.

[0029] (4) Connect the injection gun and the grouting pump with a high-pressure hose, use a small multifunctional pneumatic grouting pump, and use a two-fluid grouting system to inject the prepared vibration isolation and noise reduction material resin and catalyst into the grouting h...

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Abstract

The invention belongs to the technical field of civil engineering and relates to a grouting method used for vibration isolating and denoising outside subway tunnel segments. On the basis of vibration isolating and denoising materials, the grouting method incudes construction processes of selecting grouting holes, burying grouting pipes, determining proportion of vibration isolating and denoising resin and catalyst, injecting the proportioned resin and the catalyst into the grouting holes, washing machines and tools, stopping pumping and detaching an injection gun for secondarily grouting every three to five tunnel segments, and an integral isolator is formed to isolate vibration spreading. By the grouting method, the purpose of vibration isolating and denoising is effectively achieved, loose structure of the surrounding rock can be changed in time, integral strength of the rock is improved, construction is safe and reliable, construction speed is accelerated, normal replacement of working surfaces is guaranteed, shield excavation can be applied when passing the fault and the abnormal areas, even in the area with large vibration affection, and the grouting method is worthy of popularization and practical.

Description

Technical field [0001] The invention belongs to the technical field of civil engineering and relates to a grouting method for vibration isolation and noise reduction in subway section tunnels. Background technique [0002] Urban rail transit is an ideal means of transportation with large capacity, safety, speed, punctuality, convenience and comfort, and has the functions of low energy consumption, less pollution, safety and comfort. It has a special status and role in solving urban traffic problems. . [0003] On the other hand, with the improvement of living standards, people's requirements for the quality of life are becoming stricter than before. The environmental vibration problem caused by the rapid development of rail transit has triggered a strong public response. This is mainly because subway lines often pass through densely populated areas of the city, downtown areas with many buildings, scenic spots, and science and technology parks. The upper or nearby areas may be resi...

Claims

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Application Information

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IPC IPC(8): E21D11/38E21D11/10
Inventor 陶连金郭飞潘东旭闫冬梅许淇索新爱
Owner BEIJING UNIV OF TECH
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